Automatic flat-bottom unloading device



Feb. 14, 1933. MEYER 1,897,175

AUTOMATIC FLAT BOTTOM UNLOADING DEVICE Filed Nov. 8, 1929 zzaezziar "45 m {0 g AMP gel Patented Feb. 14, 1933 UNITED STATES PATENT OFFICE ARTHUR MEYER, F HAMBURG, GERMANY AUTOMATIC FLAT-BOTTOM .UNLOiADIN G DEVICE Application filed November 8, 1929, Serial No. 405,830, and in Germany November 9, 1928.

This invention relates to improvements in Wardly. While the levers 11 and 12 on the dump cars. right hand side break joint to allow the car The object of the invention is to provide a body to tilt, the levers l1 and 12 on the left dump car with means whereby, upon release hand side, through the medium of the conof an interlocking element, the car body is "necting pin 14, remain locked together and automatically tilted to unloading position. move as one, the lever 11, however, rocking In the accompanying drawing on its pivot 10. V

Figure 1 is a transverse section of a dump It is obvious from the foregoing descripcar, with the parts in normal position. tlon that the car body and its load is retained Figure 2 is a similar view showing the parts in normal loaded position by the interlock :be- 0 i unloading iti n, tween the levers, and that by breaking the in- .1 indi t a Car b d f d ith fi d terlock of one or the other of the levers, the ends and swinging sides 22 hinged at their welght of the load automatically dumps the upper ends at 3-3. The numeral 5 indicates l d o one or the other side of the car, de-

15 the bottom of the car body, and at the outer pending entirely upon which pin 14 is with- 65 edges thereof are cleats 6-6 to hold the sides drawn. Furthermore, it will be seen that th in closed position when the car is in normal Cleats 6 serve a dual purpose, in that they position, and to swing the sides when the car retain the sides in place at. the lower ends is tilted. The sides 2-2 are connected towhen closed, while when the car body is tilt- 0 gether by a flexible connection, as at 4. ed, one of the cleats engages one of the sides-7 The car body is mounted on an under frame and through the flexible connection 4 the opsupported on longitudinal sills, connected posite side of the car is opened to permit by a transverse brace 8, wheels being mountthe load to slide from the car bottom, as cleared on the sills in the usual way. Pivotecl to 1y shown in Figure 2. To restore the car body 5 the transverse brace 8, at 1010, on oppoto normal position, the lower tilted end is ele-' -7 site sides of the center are bell crank levers vated and the pin is inserted in the aligned 1111, the horizontal arms of which normalopenings in the levers. ly rest on supports 1515, while the vertical What I claim is rarms are pivoted at 1318 to a pair of levers 1. A dump car including a car bottom, a

12-12. The levers 1212 are pivoted at frame, levers pivoted to the frame on opposite' 9-9 to plates 7-7 depending from the botsides of the center thereof, levers depending tom of the car. from the car bottom on opposite sides of the Pins 14-14E pass through openings in the center thereof and pivoted thereto, said latbell crank levers 1111 and the levers 1212 ter levers having pivotal connection with the to form a lock between the parts to hold the levers pivoted to the frame, and interlockingcar body in loading position, as shown in means for connecting the levers on the frame Figure 1. and the levers depending from the car bottom The relative position of the pivots 9 and 10 to hold the car body in loading position,the leis such that when a pin 14 is removed, the vers pivoted to the frame being held at an 40 weight of the load 1n the car will move the leangle to the vertical when connected with the vers 11 and 12 and tilt the car bottom and evers depending from the car bottom by said rock the sides and deliver the load. For ininterlocking means whereby to normally prestance, as shown in Figure 2, pin 14 on the sent a discharge moment of the body on reright of the center of the car isshown release of the interlocking means.

moved. The levers 11 and 12 held by this 2. dump car comprising a body includpm then rock inwardly on their respective ing a tilting bottom and pivoted sides, the pivots, the car body is tilted at an angle, and bottom having cleats on the edges to cooperthe left hand cleat 6 moves the adjacent side ate with the pivoted sides to hold same in 2 on its pivot, and through the flexible conloading position and to move the sides when nection 4, the opposite side 2 is swung outthe car bottom is tilted, a frame, levers piv- 7100 v'veight of :the'load in the car:

I driestt; 1-: f

ing the levers pivoted to the :fran e at an ang1e;;to the1vertioa1with.respecttdthe-levers 5 pivoted to the car body to thus normally 10 maintain thelevers under a break-joint influence operative on release ofsaid j'lookingf means.

" 3. A dump c' arooinnrisiiig a eafbdifi 55v: 5'. 3 1.1.11 g; item a r me, ppe d e dg r; r

mg Mil-tin he 15 ing leverspivoted t6 theiindei'fsideiof thf jtilting ;bottom,"lower levers p ivoted 't. ;11he

' frame, pivots connecting the :upper :end sfof -i ='thezlower"levers to the-ripper levers, sa d 1 last mentioned 'pivots being disposed-toward 5 the center of theucar and, out of vertical align mentvwiththe pivots connecting the upperand lower levers with the ear body and the frame :respeotively; "and means E-interlocking Tthellppe'r and lov'ver' leveistoho1dthekoar remed iirloadingposition, :vvherlebv ifand 7 when saidiinterlooking means-is releasedathe the .car body.

- V In testimony whereof--51 signature; I

rieofj r V body will tilt 

